{"title":"Analysis of the γp→K+Σ0(1385) , γn→K+Σ−(1385) , and π+p→K+Σ+(1385) reactions","authors":"Ai-Chao Wang, Neng-Chang Wei, Fei Huang","doi":"10.1103/physrevd.111.054032","DOIUrl":null,"url":null,"abstract":"A comprehensive analysis of all available data on cross sections and spin-dependent observables for the γ</a:mi>p</a:mi>→</a:mo>K</a:mi>+</a:mo></a:msup>Σ</a:mi>0</a:mn></a:msup>(</a:mo>1385</a:mn>)</a:mo></a:math>, <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi>γ</g:mi><g:mi>n</g:mi><g:mo stretchy=\"false\">→</g:mo><g:msup><g:mi>K</g:mi><g:mo>+</g:mo></g:msup><g:msup><g:mi mathvariant=\"normal\">Σ</g:mi><g:mo>−</g:mo></g:msup><g:mo stretchy=\"false\">(</g:mo><g:mn>1385</g:mn><g:mo stretchy=\"false\">)</g:mo></g:math>, and <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:msup><m:mi>π</m:mi><m:mo>+</m:mo></m:msup><m:mi>p</m:mi><m:mo stretchy=\"false\">→</m:mo><m:msup><m:mi>K</m:mi><m:mo>+</m:mo></m:msup><m:msup><m:mi mathvariant=\"normal\">Σ</m:mi><m:mo>+</m:mo></m:msup><m:mo stretchy=\"false\">(</m:mo><m:mn>1385</m:mn><m:mo stretchy=\"false\">)</m:mo></m:math> reactions is performed within an effective Lagrangian framework. In addition to the <s:math xmlns:s=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><s:mi>s</s:mi></s:math>-channel <u:math xmlns:u=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><u:mi>N</u:mi></u:math> exchange, <w:math xmlns:w=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><w:mi>t</w:mi></w:math>-channel <y:math xmlns:y=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><y:mi>K</y:mi></y:math> and K</ab:mi>*</ab:mo></ab:msup></ab:math> exchanges, <cb:math xmlns:cb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><cb:mi>u</cb:mi></cb:math>-channel <eb:math xmlns:eb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><eb:mi mathvariant=\"normal\">Λ</eb:mi></eb:math>, <hb:math xmlns:hb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><hb:mi mathvariant=\"normal\">Σ</hb:mi></hb:math>, and <kb:math xmlns:kb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><kb:msup><kb:mi mathvariant=\"normal\">Σ</kb:mi><kb:mo>*</kb:mo></kb:msup></kb:math> exchanges, and the interaction current, the <nb:math xmlns:nb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><nb:mi>s</nb:mi></nb:math>-channel contributions from a minimal set of <pb:math xmlns:pb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><pb:mi>N</pb:mi></pb:math> and <rb:math xmlns:rb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><rb:mi mathvariant=\"normal\">Δ</rb:mi></rb:math> resonances are included in constructing the reaction amplitudes to describe the data. The analysis reveals that all available data for both photon- and hadron-induced <ub:math xmlns:ub=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><ub:mi>K</ub:mi><ub:mi mathvariant=\"normal\">Σ</ub:mi><ub:mo stretchy=\"false\">(</ub:mo><ub:mn>1385</ub:mn><ub:mo stretchy=\"false\">)</ub:mo></ub:math> production reactions can be simultaneously and satisfactorily reproduced when the contribution of the <zb:math xmlns:zb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><zb:mi>s</zb:mi></zb:math>-channel <bc:math xmlns:bc=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><bc:mi mathvariant=\"normal\">Δ</bc:mi><bc:mo stretchy=\"false\">(</bc:mo><bc:mn>1930</bc:mn><bc:mo stretchy=\"false\">)</bc:mo><bc:msup><bc:mrow><bc:mn>5</bc:mn><bc:mo>/</bc:mo><bc:mn>2</bc:mn></bc:mrow><bc:mo>−</bc:mo></bc:msup></bc:math> resonance is taken into account. The reaction mechanisms, particularly the resonance contributions in each considered reaction, are thoroughly analyzed and discussed in detail. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"29 1","pages":""},"PeriodicalIF":5.3000,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physical Review D","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1103/physrevd.111.054032","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Physics and Astronomy","Score":null,"Total":0}
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Abstract
A comprehensive analysis of all available data on cross sections and spin-dependent observables for the γp→K+Σ0(1385), γn→K+Σ−(1385), and π+p→K+Σ+(1385) reactions is performed within an effective Lagrangian framework. In addition to the s-channel N exchange, t-channel K and K* exchanges, u-channel Λ, Σ, and Σ* exchanges, and the interaction current, the s-channel contributions from a minimal set of N and Δ resonances are included in constructing the reaction amplitudes to describe the data. The analysis reveals that all available data for both photon- and hadron-induced KΣ(1385) production reactions can be simultaneously and satisfactorily reproduced when the contribution of the s-channel Δ(1930)5/2− resonance is taken into account. The reaction mechanisms, particularly the resonance contributions in each considered reaction, are thoroughly analyzed and discussed in detail. Published by the American Physical Society2025
期刊介绍：
Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics.
PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including:
Particle physics experiments,
Electroweak interactions,
Strong interactions,
Lattice field theories, lattice QCD,
Beyond the standard model physics,
Phenomenological aspects of field theory, general methods,
Gravity, cosmology, cosmic rays,
Astrophysics and astroparticle physics,
General relativity,
Formal aspects of field theory, field theory in curved space,
String theory, quantum gravity, gauge/gravity duality.
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